Announcing LINGO 21, Algebraic Modeling Language and Solvers
LINGO 21.0 includes a wide range of performance enhancements and new features:
• Improved reproducibility when solving a problem repeatedly, particularly with the concurrent option choosing the fastest of Barrier, Primal simplex, and dual simplex.
• Global solver offers improved handling of IF statements and polynomials.
• New symmetry detection capabilities have been added to the integer (MIP) solver. This can dramatically reduce the time needed to prove optimality on some models with integer variables.
• Improved Multi-start for quickly finding good solutions to difficult nonconvex problems.
• External Solvers Improvements. Increased support for the external solvers, including linear solvers such as COPT, CLP and HIGHS. Improved support for not only CONOPT, but also external Nonlinear solvers such as IPOpt
• Enhancements to the Windows version:
o Improved model editor, with the ability to split the edit window into multiple panes.
o New auto-completion of common keywords when typing.
o Larger Undo Redo buffer with support for more operations.
o Faster find and replace method.
o Larger toolbar buttons.
o Improved Unicode handling.
